package com.atguigu.springcloud.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import java.math.BigDecimal;


/**
 * @author zhaoye
 */
@Mapper
public interface AccountDao {



    void decrease(@Param("userId") Long userId, @Param("money") BigDecimal money);

}